原文地址:http://blog.csdn.net/u013084746/article/details/53024266
方法一:
DataTable table =new DataTable(); //创建table的第一列 DataColumn priceColumn =new DataColumn(); priceColumn.DataType = System.Type.GetType("System.Decimal");//该列的数据类型 priceColumn.ColumnName ="price";//该列得名称 priceColumn.DefaultValue =50;//该列得默认值 // 创建table的第二列 DataColumn taxColumn =new DataColumn(); taxColumn.DataType = System.Type.GetType("System.Decimal"); taxColumn.ColumnName ="tax";//列名 taxColumn.Expression ="price * 0.0862";//设置该列得表达式,用于计算列中的值或创建聚合列 // 创建table的第三列 DataColumn totalColumn =new DataColumn(); totalColumn.DataType = System.Type.GetType("System.Decimal"); totalColumn.ColumnName ="total"; totalColumn.Expression ="price + tax";//该列的表达式,是第一列和第二列值得和 // 将所有的列添加到table上 table.Columns.Add(priceColumn); table.Columns.Add(taxColumn); table.Columns.Add(totalColumn); //创建一行 DataRow row = table.NewRow(); table.Rows.Add(row);//将此行添加到table中 //将table放在视图中 DataView view =new DataView(table); //绑定到DataGrid dg.DataSource = view; dg.DataBind();
方法二:
DataTable tblDatas =new DataTable("Datas"); tblDatas.Columns.Add("ID", Type.GetType("System.Int32")); tblDatas.Columns[0].AutoIncrement =true; tblDatas.Columns[0].AutoIncrementSeed =1; tblDatas.Columns[0].AutoIncrementStep =1; tblDatas.Columns.Add("Product", Type.GetType("System.String")); tblDatas.Columns.Add("Version", Type.GetType("System.String")); tblDatas.Columns.Add("Description", Type.GetType("System.String")); tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" }); tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" }); tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" }); tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" }); tblDatas.Rows.Add(newobject[] { null, "a", "b", "c" });
方法三:
DataTable tblDatas =new DataTable("Datas"); DataColumn dc =null; dc = tblDatas.Columns.Add("ID", Type.GetType("System.Int32")); dc.AutoIncrement =true;//自动增加 dc.AutoIncrementSeed =1;//起始为1 dc.AutoIncrementStep =1;//步长为1 dc.AllowDBNull =false; dc = tblDatas.Columns.Add("Product", Type.GetType("System.String")); dc = tblDatas.Columns.Add("Version", Type.GetType("System.String")); dc = tblDatas.Columns.Add("Description", Type.GetType("System.String")); DataRow newRow; newRow = tblDatas.NewRow(); newRow["Product"] ="这个地方是单元格的值"; newRow["Version"] ="2.0"; newRow["Description"] ="这个地方是单元格的值"; tblDatas.Rows.Add(newRow); newRow = tblDatas.NewRow(); newRow["Product"] ="这个地方是单元格的值"; newRow["Version"] ="3.0"; newRow["Description"] ="这个地方是单元格的值"; tblDatas.Rows.Add(newRow);
时间: 2024-10-22 09:43:08